NEC Communication Systems, Ltd.
4 more in force are now held by other companies
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
Recorded under 7 name spellings.
2
Ending by 2030
Jan 2027
Next term end
When these terms end
Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
Fee deadlines
Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.
- 1 fee due Nov 19, 2026The maintenance fee for Wireless communication terminal (US 9,037,117) comes due Nov 19, 2026. Unpaid by May 19, 2027, it lapses early.
- 1 fee due Dec 25, 2026The maintenance fee for Program Executed in Transmitter, Receiver and Program Executed in Receiver (US 10,334,628) comes due Dec 25, 2026. Unpaid by Jun 25, 2027, it lapses early.
- 1 fee due Jan 16, 2027The maintenance fee for Communication device (US 10,356,844) comes due Jan 16, 2027. Unpaid by Jul 16, 2027, it lapses early.
Recent changes
- 1 of the patents on this record was granted since Aug 17, 2026
Patents held now
Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,577,362 | Optical access network method, optical access network, and optical switch for optical access network In force · From the USPTO record | In force | From the USPTO record | |
| US 7,616,899 | Synchronizing method in optical access network, optical switching device, center device, and remote device In force · From the USPTO record | In force | From the USPTO record | |
| US 8,385,260 | Wireless base station, communication system, belonging information management method and storage medium for storing program In force · From the USPTO record | In force | From the USPTO record | |
| US 9,009,160 | Information classification system In force · From the USPTO record | In force | From the USPTO record | |
| US 9,867,126 | Wireless base station and wireless communication systems using the same In force · From the USPTO record | In force | From the USPTO record | |
| US 9,037,117 | Wireless communication terminal In force · From the USPTO record | In force | From the USPTO record | |
| US 9,521,613 | Wireless base station and wireless communication system using the same In force · From the USPTO record | In force | From the USPTO record | |
| US 9,374,784 | Terminal device, wireless base station wirelessly communicating with the same, and wireless communication system using terminal device and wireless base station In force · From the USPTO record | In force | From the USPTO record | |
| US 9,025,697 | Transmitter, Transmission Method Used by the Same, Receiver for Receiving a Radio Signal from Transmitter and Wireless Communication System Including the Same In force · High confidence | In force | High confidence | |
| US 9,408,148 | Communication system, communication method, radio apparatus in communication system and program executed by terminal device in communication system In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 27: 4 patents in force now held by others · 19 lapsed for an unpaid fee · 3 ended at full term. List them
Sources and methods
Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand.
How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
Published applications
US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.
2 pending · 1 abandoned · 10 no status recorded